California earthquakes

M1.7 earthquake 5km NW of Brawley, CA

A magnitude 1.7 earthquake struck 5km NW of Brawley, CA on Fri, Apr 17, 1987, 11:44 AM PDT (18:44 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M1.8 22km ESE of Anza, CA. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.7 (mc), micro
Local time
UTC
1987-04-17 18:44:16 UTC
Depth
13.9 km (8.6 mi), shallow
Epicenter
33.008° N, 115.565° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
From location
Station coverage gap
139°
Stations used
0

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 161 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 161.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci720813. Read Tue, Sep 22, 2026, 9:30 PM UTC.